The DVCS\(^2\)  term (which is \(\phi \)  independent at leading twist) can be very cleanly separated from the BH-DVCS interference contribution, and this without any assumption regarding the leading-twist dominance. The \(Q^2-\) dependence of each term will be measured (cf. Tab. REF ) and its dependence compared to the asymptotic prediction of QCD. The extremely high statistical and systematic precision of the results illustrated in Fig. REF  will be crucial to disentangle higher order effects (higher twist or next-to-leading order contributions) as shown by recent results [1]}.
